This photo was taken from the dome of St. Paul's Cathedral and is of the Millennium Bridge in London. The bridge is a steel suspended bridge that crosses the Thames river and connects Bankside with the city of London. Construction for this pedestrian-only bridge began in 1998 and the bridge was opened on June 10, 2000. The millennium Bridge is currently owned and maintained by the Bridge House Estates, which is a charitable trust that is overseen by the City of London Corporation.
The Millennium Bridge received the nickname Wobbly Bridge by Londoners after participants of a special charity walk for Save the Children experienced awkward swaying motions on the bridge during the first two days of the bridge being open. The bridge was closed after only two days of being open and was modified for two years before being re-opened in 2002.
Some might also recognize The Millennium Bridge as the bridge that is destroyed by Death Eaters in the film adaptation of Harry Potter and the Half-Blood Prince.
Information found at http://en.wikipedia.org/wiki/Millennium_Bridge_(London)
